Σ index Eq pack 19 Rxn set 20 Rxn set 26 Σ#24 Σ#12 Ledger /21 Eq pack 13 Ledger /3 Eq pack 1 Batch 16 Σ#18 Σ#6 Ledger /15 Batch 4

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-20 00:57Z

∑_{k=1}^{n} k = n(n+1)/2

det| 11 9 ; 0 12 | = 132

168K

∇ × E = −∂B/∂t

446K

3x² + 3x + 6 = 0

det| 5 3 ; 7 6 | = 9

144K

10t² + 9t + 5 = 0

371K

∇²t = 0

d/dt [t^3] = 3t^2

259K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

86K

7z² + 2z + 0 = 0

\lim_{α\to 0} \frac{\sin α}{α} = 1

224K

8ψ² + 7ψ + 0 = 0

234K

∫₀^∞ e^(-x²) dx = √π / 2

218K

∫₀^∞ e^(-ψ²) dψ = √π / 2

354K